incompatibility with The Aether (MC 1.21.1)

[worm-in-concrete]

Mod Loader

Fabric

Mod Loader Version

0.16.10

The Aether Version

aether-1.21.1-1.5.7-fabric

Dynamic Surroundings Version

Dynamic Surroundings-fabric-1.21.1-0.4.2

Client Log

https://mclo.gs/6RXQdUW

Crash Report (if applicable)

https://mclo.gs/t86Yngi

Steps to Reproduce

Every time after enabling activate quick join feature and restarting the game. It happens when Dynamic Surroundings is installed and It happens only in my modpack (https://transfiles.ru/bdawt).

1. Press “W” button on main menu to activate quick join feature.
2. Relaunch game.
3. MC crashes.

What You Expect To Happen

Minecraft doesn't crash.

What Actually Happened

MC is crashing because the Dynamic Surroundings mod thinks the server is running and requesting some data, but it really isn't...? I'm not sure. here is the error text: "java.lang.NullPointerException: Cannot invoke "org.orecruncher.dsurround.config.biome.BiomeInfo.findBiomeSoundMatches()" because "internalPlayerBiomeInfo" is null"

Additional Details

I also tried to repeat this error only with the “Dynamic Surroundings” and “The Aether” mods, but no errors appeared: https://mclo.gs/0OSidpb. Here's my set of mods: https://transfiles.ru/bdawt

[Dragon-Seeker]

There is a little update to this: the feature is a World Preview found within Cumulus that allows the background menu to be replaced with a world instance. Unknown the root cause at the moment and the issue is also tracked here on the Aether github here

[OreCruncher]

Another "fake" world. :) I may be able to hack around it.